Hey all. One of my betta fish who shares a tank with a divider with the other one in the past few days has been floating to the top of the tank when he ttys to swim down. He then lays on his side at the top of the water and doesn't really move that much. But I'm confused because at random times he can swim to the bottom perfectly but a little while later he's back at the top of the water again.
It's not like he's over fed as they both get 2 little pellet things a day morning and evening. But I tried not feeding him for a couple days and feeding him a cooked pea which didn't do anything. So now I'm wondering if he's just old and trying to die? Or what else is going on?
The other fish is perfectly fine. Water is around 80 and it's cleaned every 3 days.